boolean trace_dump_trace_begin()
{
const char *filename;
filename = debug_get_option("GALLIUM_TRACE", NULL);
if(!filename)
return FALSE;
if(!stream) {
stream = os_file_stream_create(filename);
if(!stream)
return FALSE;
trace_dump_writes("<?xml version='1.0' encoding='UTF-8'?>\n");
trace_dump_writes("<?xml-stylesheet type='text/xsl' href='trace.xsl'?>\n");
trace_dump_writes("<trace version='0.1'>\n");
#if defined(PIPE_OS_LINUX) || defined(PIPE_OS_BSD) || defined(PIPE_OS_SOLARIS) || defined(PIPE_OS_APPLE)
/* Linux applications rarely cleanup GL / Gallium resources so catch
* application exit here */
atexit(trace_dump_trace_close);
#endif
}
++refcount;
return TRUE;
}
void
debug_dump_float_rgba_bmp(const char *filename,
unsigned width, unsigned height,
float *rgba, unsigned stride)
{
#ifndef PIPE_SUBSYSTEM_WINDOWS_MINIPORT
struct os_stream *stream;
struct bmp_file_header bmfh;
struct bmp_info_header bmih;
unsigned x, y;
if(!rgba)
goto error1;
bmfh.bfType = 0x4d42;
bmfh.bfSize = 14 + 40 + height*width*4;
bmfh.bfReserved1 = 0;
bmfh.bfReserved2 = 0;
bmfh.bfOffBits = 14 + 40;
bmih.biSize = 40;
bmih.biWidth = width;
bmih.biHeight = height;
bmih.biPlanes = 1;
bmih.biBitCount = 32;
bmih.biCompression = 0;
bmih.biSizeImage = height*width*4;
bmih.biXPelsPerMeter = 0;
bmih.biYPelsPerMeter = 0;
bmih.biClrUsed = 0;
bmih.biClrImportant = 0;
stream = os_file_stream_create(filename);
if(!stream)
goto error1;
os_stream_write(stream, &bmfh, 14);
os_stream_write(stream, &bmih, 40);
y = height;
while(y--) {
float *ptr = rgba + (stride * y * 4);
for(x = 0; x < width; ++x)
{
struct bmp_rgb_quad pixel;
pixel.rgbRed = float_to_ubyte(ptr[x*4 + 0]);
pixel.rgbGreen = float_to_ubyte(ptr[x*4 + 1]);
pixel.rgbBlue = float_to_ubyte(ptr[x*4 + 2]);
pixel.rgbAlpha = 255;
os_stream_write(stream, &pixel, 4);
}
}
os_stream_close(stream);
error1:
;
#endif
}
